Search results
Results from the WOW.Com Content Network
German – Wenn Schweine fliegen können! is identical with the English saying "when pigs fly", although the older proverb Wenn Schweine Flügel hätten, wäre alles möglich ("if pigs had wings, everything would be possible") is in more common use, often modified on the second part to something impossible, like "if pigs had wings, even your ...
This is a list of puzzles that cannot be solved. An impossible puzzle is a puzzle that cannot be resolved, either due to lack of sufficient information, or any number of logical impossibilities. 15 Puzzle – Slide fifteen numbered tiles into numerical order. It is impossible to solve in half of the starting positions. [1]
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.
Impossible object: Irradiation illusion: Isometric illusion: An isometric illusion (also called an ambiguous figure or inside/outside illusion) is a type of optical illusion, specifically one due to multistable perception. Jastrow illusion: The Jastrow illusion is an optical illusion discovered by the American psychologist Joseph Jastrow in 1889.
Arrow paradox : If we divide time into discrete 0-duration slices, no motion is happening in each of them, so taking them all as a whole, motion is impossible. Aristotle's wheel paradox : Rolling joined concentric wheels seem to trace the same distance with their circumferences, even though the circumferences are different.
We're introducing our 2014 holiday gift guides -- with ideas for everyone on your list, arranged by personality and Gifts for Your Impossible-to-Buy-For List Skip to main content
Use your free time to read through historical documents from the 18th and 19th centuries and transcribe them — and you can do it all from home in your PJs. Sign up here . 8.
Impossible puzzles; Maze video games; Nikoli puzzle types; Puzzle video games; Puzzle topics; This is a list of puzzle topics, by Wikipedia page. Puzzles, by type